HAVCR2 and glioblastoma: The PFS of UCEC was positively correlated with the OS of UVM and THYM, and negatively correlated with the PFS of GBM, UVM, and THYM; the expression of HAVCR2 was positively correlated with the OS of SKCM, KIRC, and KIRP, and the PFS of KIRC and ACC, and negatively correlated with the PFS of LGG, UVM, and TGCT.